Removing The Transmission; Checking The Shift Forks - Yamaha MT-09 2021 Service Manual

EAS30430

REMOVING THE TRANSMISSION

1. Remove:
• Drive axle assembly "1"
• Shift drum retainer "2"
• Shift fork guide bar 2
• Spring
• Shift fork-L
• Shift fork-R
• Shift fork guide bar 1
• Spring
• Shift drum assembly
• Shift fork-C
2. Remove:
• Bearing housing "1"
• Main axle assembly "2"
a. Insert two bolts "3" of the proper size, as
shown in the illustration, into the main axle
assembly bearing housing.
1
3
b. Tighten the bolts until they contact the
crankcase surface.
c. Continue tightening the bolts until the main
axle assembly comes free from the upper
crankcase.
3. Remove:
• Oil delivery pipe "1"
• Oil nozzle "2"
• Bearing cover plate "3"
• Bearing "4"
1
2
2
5-91
1
EAS30431

CHECKING THE SHIFT FORKS

The following procedure applies to all of the shift
forks.
1. Check:
• Shift fork cam follower "1"
• Shift fork pawl "2"
Bends/damage/scoring/wear → Replace the
shift fork.
G089022
2. Check:
• Shift fork guide bar 1
• Shift fork guide bar 2
Roll the shift fork guide bar on a flat surface.
Bends → Replace.
EWA12840
WARNING
Do not attempt to straighten a bent shift fork
guide bar.
3. Check:
• Shift fork movement
(along the shift fork guide bar)
Rough movement → Replace the shift forks
and shift fork guide bar as a set.
G089023
TRANSMISSION
2
4
3